I was misguided by libdtc warnings, and thought bison/flex were required to build QEMU, so installed them in docker (and they also ended in the VM scripts).
Claudio's series "libfdt: build only the strict necessary" even silents the warnings. Based-on: <20200514193811.6798-1-cfont...@suse.de> Philippe Mathieu-Daudé (5): tests/docker: Remove flex/bison packages tests/vm: Remove flex/bison packages gitlab-ci: Remove flex/bison packages cirrus-ci: Remove flex/bison packages scripts/coverity-scan: Remove flex/bison packages .cirrus.yml | 2 +- .gitlab-ci.yml | 2 +- scripts/coverity-scan/coverity-scan.docker | 2 -- tests/docker/dockerfiles/centos7.docker | 2 -- tests/docker/dockerfiles/centos8.docker | 2 -- tests/docker/dockerfiles/debian-xtensa-cross.docker | 2 -- tests/docker/dockerfiles/debian10.docker | 2 -- tests/docker/dockerfiles/debian9.docker | 2 -- tests/docker/dockerfiles/fedora.docker | 2 -- tests/docker/dockerfiles/ubuntu.docker | 2 +- tests/docker/dockerfiles/ubuntu1804.docker | 2 +- tests/vm/fedora | 1 - tests/vm/freebsd | 1 - tests/vm/netbsd | 1 - tests/vm/openbsd | 1 - tests/vm/ubuntu.i386 | 2 +- 16 files changed, 5 insertions(+), 23 deletions(-) -- 2.21.3